期刊
JOURNAL OF PARKINSONS DISEASE
卷 11, 期 2, 页码 821-832出版社
IOS PRESS
DOI: 10.3233/JPD-202418
关键词
Rheumatoid arthritis; Parkinson's disease; autoimmune disease; anti-inflammatory
资金
- Farmer Family Foundation
- Van Andel Institute
Individuals previously diagnosed with rheumatoid arthritis (RA) had a decreased risk of developing Parkinson's disease (PD) by 30-50%, with the greatest risk reduction in females. These findings should be considered when developing or repurposing therapies aimed at modifying the course of PD.
Background: Rheumatoid arthritis (RA) and the genetic risk landscape of autoimmune disorders and Parkinson's disease (PD) overlap. Additionally, anti-inflammatory medications used to treat RA might influence PD risk. Objective: To use a population-based approach to determine if there is an association between pre-occurring rheumatoid arthritis (RA) and later-life risk of PD. Methods: The study population was 3.6 million residents of Sweden, who were alive during part or all of the follow-up period; 1997-2016. We obtained diagnoses from the national patient registry and identified 30,032 PD patients, 8,256 of whom each was matched to ten controls based on birth year, sex, birth location, and time of follow-up. We determined the risk reduction for PD in individuals previously diagnosed with RA. We also determined if the time (in relation to the index year) of the RA diagnosis influenced PD risk and repeated the analysis in a sex-stratified setting. Results: Individuals with a previous diagnosis of RA had a decreased risk of later developing PD by 30-50% compared to individuals without an RA diagnosis. This relationship was strongest in our conservative analysis, where the first PD diagnosis occurred close to the earliest PD symptoms (odds ratio 0.47 (CI 95% 0.28-0.75, p = 0.0006); with the greatest risk reduction in females (odds ratio 0.40 (CI 95% 0,19-0.76, p = 0.002). Discussion: Our findings provide evidence that individuals diagnosed with RA have a significantly lower risk of developing PD than the general population. Our data should be considered when developing or repurposing therapies aimed at modifying the course of PD.
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